I realize that Obama’s tax plans can be hard to pin down, and that there are challenges presented in trying to corral the many different taxes he is proposing to raise, like capital gains, dividend, payroll, and estate taxes, as well as indirect taxes like energy and corporate taxes (in the latter case, as with gas taxes, he’s opposing McCain’s proposed cuts) and tariffs. But calculations for particular people presumably can be done, at least in a rough-estimate sort of way, and the numbers they give you can be eye-popping especially for groups like upper-middle-class professionals and small business people who the GOP has been weaker with in recent elections.